Also called:  acid, trips, tabs.

How it’s used

LSD is a hallucinogenic drug. It comes from ergot, a fungus found growing wild on rye and other grasses. It comes as a piece of paper with pictures on it, which you suck or swallow.

Short-term effects

•    Effects start 30 minutes after you take it and can last up to 20 hours
•    Effects depend on how much you take and how you are feeling when you take them, so may be good or bad
•    You may have visual effects, distortion of sound, changes in sense of time and place. This is called a ‘trip’.

Long-term effects

•    Paranoia, phobia and ideation (thinking about suicide)
•    If you have underlying mental health problems, LSD can trigger them
•    You can get flashbacks for 2-3 years after your trip

Other dangers

•    LSD affects your judgement so you may make unsafe choices, such as driving while under the influence
•    Hallucinations may make you delusional, such as believing you can fly, which can cause accidents or falls

If you are pregnant

Do not use if you are pregnant as we don’t know enough about the risks to your baby.


LSD is not addictive, but you can build tolerance so you need to take more to get the same effect.


No withdrawal symptoms

How long does it stay in your system?

LSD will show up in a urine test for 2-3 days depending on the amount taken and own metabolism.